<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!-- 引入标签库 -->
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt"%>
<%@ taglib prefix="spring" uri="http://www.springframework.org/tags/form"%>
<%@ taglib prefix="shiro" uri="http://shiro.apache.org/tags"%>
<c:set value="${pageContext.request.contextPath }" var="cx"></c:set>
